| 基于点云数据的不规则文物三维重建——以经幢为例 |
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| 引用本文： | 喜文飞,李灵索,杨勇,李国柱,李春梅,李金平.基于点云数据的不规则文物三维重建——以经幢为例[J].测绘通报,2020,0(12):87-89. |
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| 作者姓名： | 喜文飞 李灵索 杨勇 李国柱 李春梅 李金平 |
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| 作者单位： | 1. 云南师范大学旅游与地理科学学院, 云南 昆明 650500;2. 昆明市城市基本建设档案馆, 云南 昆明 650051;3. 云南海钜地理信息技术有限公司, 云南 昆明 650000 |
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| 基金项目： | 云南省科技厅面上项目（2017FB078；ZX20200825007）；国家自然科学基金（41861057） |
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| 摘 要： | 海量点云数据可以较好地构建文物的三维建模，针对文物复杂的表面结构，传统的算法很难达到精细建模，为了解决复杂模型表面的空间三角网构网问题，本文结合空间三角形的法向量构建三角网，以空间三角网表面的曲率为约束条件，构建物体表面的空间三角网，然后对构建的空间三角网进行精细建模。以昆明市文物——经幢为例进行三维重建试验，结果表明，新方法适合室内文物的三维建模，可以达到较好的效果。
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| 关 键 词： | 点云数据 三维建模 空间三角网 曲率 |
| 收稿时间： | 2020-06-28 |
| 修稿时间： | 2020-09-30 |
Three-dimensional reconstruction of irregular cultural relics based on point cloud data: taking Buddhist stone pilar as an example |
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| XI Wenfei,LI Lingsuo,YANG Yong,LI Guozhu,LI Chunmei,LI Jinping.Three-dimensional reconstruction of irregular cultural relics based on point cloud data: taking Buddhist stone pilar as an example[J].Bulletin of Surveying and Mapping,2020,0(12):87-89. |
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| Authors: | XI Wenfei LI Lingsuo YANG Yong LI Guozhu LI Chunmei LI Jinping |
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| Institution: | 1. College of Tourism and Geographic Sciences, Yunnan Normal University, Kunming 650500, China;2. Kunming Municipal Capital Construction Archives, Kunming 650051, China;3. Yunnan Haiju Geographic Information Technology Co., Ltd., Kunming 650000, China |
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| Abstract: | Massive point cloud data can build 3D modeling of cultural relics very well. For complex surface structure of cultural relics, traditional algorithms are difficult to achieve fine modeling. In order to solve the problem of spatial triangular mesh, the paper combines the normal vector of spatial triangle to construct triangular mesh. Take Kunming cultural relic——Buddhist stone pilar as an example to carry on the three-dimensional reconstruction, the new method in this paper is suitable for 3D modeling of indoor cultural relics and can achieve better results. |
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| Keywords: | point cloud data 3D modeling spatial triangulation curvature |
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